JP2008101347A - Earthquake-resisting wall structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an earthquake-resisting wall structure which can efficiently and easily enhance earthquake-resisting strength, while reducing the weight of an earthquake-resisting wall. <P>SOLUTION: A space S is surrounded by an upside floor structure 2, a pair of column structures 3 for supporting the upside floor structure 2, and a downside floor structure 5 in which the pair of column structures is erected. A plurality of cylindrical bodies 6 are installed in the space S in such a manner that the axial centers of the cylindrical bodies are positioned along a direction almost orthogonal to a direction in which the pair of column structures face each other, and in such a manner as to be vertically and horizontally juxtaposed in the state of being connected to one another in the radial direction of the cylindrical body. Thus, the earthquake-resisting wall B is integrally constructed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention provides an earthquake-resistant structure in a space surrounded by an upper floor structure, a pair of column structures that support the upper floor structure, and a lower floor structure on which the pair of column structures are erected. The present invention relates to a seismic wall structure in which walls are integrally constructed.

The above seismic wall structure is intended to increase the seismic strength by suppressing the deformation of a substantially rectangular frame structure in the side view consisting of an upper floor structure, a pair of pillar structures, and a lower floor structure. A seismic wall is built in the inner space of the frame frame.
In addition, the said earthquake-resistant wall structure is effective also in suppressing the deformation | transformation by the wind load etc. at the time of a storm of a frame-shaped frame.
In the conventional earthquake-resistant wall structure described above, a plurality of rectangular tubular steel square cylinders are installed in the inner peripheral space of the frame-like frame so that the workability can be improved while reducing the weight of the earthquake-resistant wall. The cylindrical shaft cores are placed along the direction that is substantially perpendicular to the direction in which the pair of pillar structures face each other, and the side surfaces of the cylinders are connected to each other vertically and horizontally so that the seismic walls are integrated. (For example, refer patent document 1).

Japanese Patent Laid-Open No. 11-71907

However, in addition to the fact that the rectangular tubular body is easily deformed into a diamond shape in cross section, it forms the tubular side surface of the four flat plate portions that form the tubular wall of the rectangular tubular body. With a posture in which the pair of flat plate portions are substantially along the floor surface of the upper and lower floor structures, and the remaining pair of flat plate portions forming the cylindrical side surfaces are substantially along the column axis of the left and right column structures, Since a plurality of rectangular cylinders are installed side by side in the vertical and horizontal directions, and the flat plate parts facing each other are connected to each other, a seismic wall is integrally constructed in the inner peripheral space of the frame frame. When an external force that deforms a substantially rectangular frame-like frame into a rhombus shape is applied, each square tube also has a transverse cross-sectional shape that easily deforms into a rhombus so as to follow the deformation of the frame-like frame. In order to suppress deformation of the body, it is necessary to install a rectangular tube body with a thick cylinder wall and a large weight. Runode, while reducing the weight of the shear wall is a seismic intensity efficiently enhanced hard disadvantages.
This invention is made | formed in view of the said situation, Comprising: It aims at providing the earthquake-resistant wall structure which is easy to raise seismic strength efficiently, aiming at weight reduction of an earthquake-resistant wall.

  A first characteristic configuration of the present invention is surrounded by an upper floor structure, a pair of column structures that support the upper floor structure, and a lower floor structure in which the pair of column structures are erected. The cylinders are vertically moved in a state where the cylindrical shaft cores are aligned in a direction substantially perpendicular to the direction in which the pair of columnar structures face each other and are connected to each other in the cylinder radial direction. The side walls are installed side by side, and the seismic walls are built in one piece.

[Action and effect]
In a space surrounded by the upper floor structure, a pair of pillar structures that support the upper floor structure, and a lower floor structure in which the pair of pillar structures are erected, a plurality of cylindrical bodies are provided. These cylindrical shaft cores are installed side by side in the vertical and horizontal directions in a state of being connected to each other in the cylinder radial direction, along the direction substantially orthogonal to the direction in which the pair of column structures face each other, and the seismic walls are integrated. Therefore, an external force that deforms a substantially rectangular frame structure into a rhombus shape in a side view composed of an upper floor structure, a pair of pillar structures, and a lower floor structure is applied when an earthquake occurs. However, the cylinders that are arranged side by side in the cylinder radial direction are arranged side by side so that the deformation of adjacent cylinders is restrained and the cylinders are difficult to deform.
Therefore, even when an external force is applied to deform a substantially rectangular frame-shaped frame into a rhombus shape, the frame-shaped frame can be deformed without particularly installing a square cylinder having a thick cylindrical wall and a large weight. Therefore, it is easy to efficiently increase the seismic strength while reducing the weight of the seismic wall.
Moreover, if the inside of all or part of the cylindrical body is made hollow across the front and back of the earthquake-resistant wall, it is possible to achieve daylighting and ventilation through the cylindrical body over the front and rear of the earthquake-resistant wall.

  The second characteristic configuration of the present invention is that a filler is filled inside a part of the plurality of cylindrical bodies.

[Action and effect]
Since the filling material is filled inside a part of the plurality of cylinders, the pressure resistance of the part of the plurality of cylinders can be increased.

  The third characteristic configuration of the present invention lies in that the filler is filled into the inside of a cylindrical body that is installed facing each of the corners that surround the space.

[Action and effect]
Cylindrical bodies that are installed facing each of the corners that surround the space, that is, cylindrical bodies that tend to concentrate compressive force when an external force that deforms a substantially rectangular frame structure into a rhombus shape is applied. Since the inside is filled with a filler, it is easy to increase the seismic strength more efficiently.

  A fourth characteristic configuration of the present invention is that the cylindrical body is formed of a steel material.

[Action and effect]
Since the cylindrical body is formed of an easily available steel material, it can be constructed at low cost.

  A fifth characteristic configuration of the present invention is that the inside of a part of the plurality of cylindrical bodies is closed with a circular plate material.

[Action and effect]
Since the inside of a part of the plurality of cylinders is closed with a circular plate material, in order to increase the pressure resistance of the part of the plurality of cylinders, a filler is provided inside the cylinder. The pressure strength can be increased while reducing the weight as compared with the case of filling the material.

  A sixth characteristic configuration of the present invention is that the circular plate is formed of a steel material.

[Action and effect]
Since the circular plate material is made of an easily available steel material, it can be constructed at a low cost.

Embodiments of the present invention will be described below with reference to the drawings.
[First Embodiment]
FIG. 1 shows a seismic wall structure according to the present invention. In an existing reinforced concrete building, a beam 2 supporting an upper floor slab 1 as an upper floor structure and a pair of column structures supporting the beam 2 are shown. The frame 3 and the floor slab 5 supported by the beam 4 as the lower floor structure on which the pair of columns 3 are erected constitutes a substantially rectangular frame-shaped frame A in a side view. There are a plurality of steel cylinders 6 of the same size and shape in the inner circumferential space S surrounded by the frame-like frame A, and the cylinder axis is substantially orthogonal to the direction in which the pair of columns 3 face each other. The seismic wall B is integrally constructed along the direction (thickness direction of the seismic wall) and with the cylinder end faces aligned and arranged side by side in the vertical and horizontal directions in a state of being connected to each other in the cylinder radial direction.

  The plurality of cylindrical bodies 6 are formed by replacing a plurality of cylindrical body rows 8 formed of a plurality of cylindrical body 6 adjacent to each other in a contact state on the left and right in a direction along a substantially horizontal floor surface 7. The bodies 6 are arranged vertically in the inner circumferential space S so that the bodies 6 are arranged in a zigzag shape so as to enter between the cylinders 6 of the lower cylinder row 8.

As shown in FIG. 3, the cylindrical bodies 6 adjacent to each other in the left-right direction and the up-down direction are formed with a series of slit-shaped openings 9 along the cylinder axis direction in the cylinder wall. The cylindrical bodies 6 that are welded (groove welded) to the peripheral surfaces of the adjacent cylindrical bodies 6 on the inner side and are integrally connected to each other in the cylinder radial direction are in contact with the inner peripheral side of the frame-shaped frame A. The anchor bolt 10 provided at A is fixed integrally.
In addition, 11 in a figure has shown the groove welding part.

Of the plurality of cylindrical bodies 6, the corner portion 12 surrounding the inner circumferential space S, that is, the upper corner portion 12 a where the beam 2 and the column 3 intersect, and the floor slab 5 and the column 3 intersect. The inside of the cylindrical body 6a that is installed to face the lower corner portion 12b is filled with a filler 13 such as concrete, and obliquely extends between the beam 2 side and the floor slab 5 side. A filler 13 such as concrete is also filled inside each cylindrical body 6b adjacent in a zigzag shape (a bracing shape) in the vertical direction.
In order to integrally connect the cylindrical bodies 6 adjacent to each other in the left-right direction and the vertical direction by welding, slit-like openings 9 are intermittently formed in the cylinder wall along the cylinder axis direction and adjacent to each other. Even when welding (groove welding) to the circumferential surface of the cylindrical body 6, a plurality of circular through holes are formed on the cylindrical wall at intervals along the cylinder axis direction and welded to the circumferential surface of the adjacent cylindrical body 6 ( Or the fillet welds may be made between the outer peripheral surfaces of the adjacent cylindrical bodies 6.

[Second Embodiment]
In place of the cylindrical bodies 6a and 6b filled with the filler 13 shown in the first embodiment, as shown in FIG. 4, cylindrical bodies 6a and 6b whose inner sides are closed with a steel circular plate material 14 are provided. It may be.

The circular plate member 14 is integrally fixed by welding to the inner peripheral surfaces of the cylindrical bodies 6a and 6b at the substantially central position in the longitudinal direction of the cylindrical bodies 6a and 6b.
Other configurations are the same as those of the first embodiment.

[Other Embodiments]
1. In the earthquake-resistant wall structure according to the present invention, a cylindrical body in contact with the inside of the frame-shaped frame may be bonded and fixed to the frame-shaped frame with an adhesive such as epoxy resin.
2. The seismic wall structure according to the present invention is filled with a filler such as concrete even if it is formed hollow between the cylinders or between the frame frame and the cylinder over the front and rear surfaces of the seismic wall. However, it may be closed with a steel plate.
3. In the earthquake-resistant wall structure according to the present invention, the inside of all the cylindrical bodies may be closed with a filler such as concrete or a steel plate.
4). In the earthquake-resistant wall structure according to the present invention, the cylindrical bodies may be integrally connected by bolts or may be integrally connected to each other by an adhesive such as epoxy resin.
5. The earthquake-resistant wall structure according to the present invention may be constructed by arranging a plurality of cylindrical bodies having different outer diameters in the vertical and horizontal directions.
6). The earthquake-resistant wall structure according to the present invention may be constructed by arranging a plurality of cylindrical bodies having different lengths in the vertical and horizontal directions.
7). The earthquake-resistant wall structure according to the present invention may be provided by arranging a plurality of cylindrical bodies side by side vertically and horizontally so as to be adjacent to each other in the horizontal direction and the vertical direction.
8). The earthquake-resistant wall structure according to the present invention is configured such that a plurality of cylindrical bodies are separately installed in the inner space of the frame-shaped frame even if the plurality of cylindrical bodies are connected together in advance and installed in the inner space of the frame-shaped frame. Then, they may be connected together.
9. In the seismic wall structure according to the present invention, a seismic wall may be provided on the lower side of the upper floor structure composed of a flat floor slab or a part of the floor slab supported by the beam that is separated from the beam in the horizontal direction. .
10. The seismic wall structure according to the present invention may be provided with a seismic wall on a portion of the floor slab supported by the beam that is separated from the beam in the horizontal direction or on the upper side of the lower floor structure composed of a flat floor slab. .
11. The seismic wall structure according to the present invention may be provided with a seismic wall in a space surrounded by a wall-like columnar structure member such as an outer wall that supports the upper floor structure.
12 The building provided with the seismic wall structure according to the present invention may be reinforced concrete, steel reinforced concrete, steel reinforced, one-story, or may have multiple levels. .

Side view of earthquake-resistant wall structure II-II cross section arrow view of FIG. (B) Perspective view of main part, (b) Cross section of main part The horizontal sectional view of the important section showing a 2nd embodiment

Explanation of symbols

2 Upper Floor Structure 3 Column Structure 5 Lower Floor Structure 6 Cylinder 6a Some Cylindrical Body 6b Some Cylindrical Body 12 Corner Corner 13 Filler 14 Circular Plate Material B Earthquake Resistant Wall S Space

Claims (6)

  In the space surrounded by the upper floor structure, the pair of pillar structures that support the upper floor structure, and the lower floor structure on which the pair of pillar structures are erected, a plurality of cylindrical bodies are provided. The cylindrical shaft cores are installed side by side in the vertical and horizontal directions in a state of being connected to each other in the cylinder radial direction along a direction substantially orthogonal to the direction in which the pair of column structures face each other. Is a seismic wall structure that is built in one piece.   The earthquake-resistant wall structure according to claim 1, wherein a filler is filled inside a part of the plurality of cylindrical bodies.   The earthquake-resistant wall structure according to claim 2, wherein the filler is filled inside a cylindrical body that is installed facing each of the corners that surround the space.   The earthquake resistant wall structure according to any one of claims 1 to 3, wherein the cylindrical body is formed of a steel material.   The earthquake-resistant wall structure according to any one of claims 1 to 3, wherein an inner side of a part of the plurality of cylindrical bodies is closed with a circular plate member.   The earthquake-resistant wall structure according to claim 5, wherein the circular plate is made of steel.

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